Background stars are also visible as the otherwise overwhelming sunlight is blocked by the coronograph's occulting disk.
在影像中还能看到背景恒星,另外强烈的太阳光被日冕观测仪的掩盘给遮挡了。
英语百科
Occulting disk
An occulting disk is a small disk used in a telescope to block the view of a bright object in order to allow observation of a fainter one. The coronagraph, at its simplest, is an occulting disk in the focal plane of a telescope, or in front of the entrance aperture, that blocks out the image of the solar disk, so that the corona can be seen. Starshade is one designed to fly in formation with a space telescope to image exoplanets.